Research on heat and electricity coordinated dispatch model for better integration of wind power based on electric boiler with thermal storage

Yang, Linlin; Zhang, Xing; Gao, Peng

doi:10.1049/iet-gtd.2017.2032

Cited by 33 publications

(17 citation statements)

References 29 publications

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“…Simulation results demonstrate that the dispatch model is efficient to reduce the emissions of CO2, SO2, and NOx, and increase the wind power accommodation. The following conclusions can be drawn: (1) The emissions of CO2, SO2, and NOx could be reduced, and the wind power accommodation could be promoted, when considering the environmental cost in an economic dispatch model; (2) environmental costs can be counted as the cost of power generation, since the environmental cost is closely related to the amount of coal burned; and (3) environmental cost accounts for a certain…”

Section: Discussionmentioning

confidence: 99%

“…In recent years, clean energy is promoted all over the world to reduce environmental pollution. Although China is rich in wind energy resources, the main operation pattern "determining power by heat" for combined heat and power (CHP) and the "anti-peak regulation" character of wind power in heating season causes severe wind curtailment [1,2]. In the heating season, the thermal load demand of consumers must be met, but the thermal power constrains the electrical power of CHP.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Dispatch Model Considering Environmental Cost Based on Combined Heat and Power with Thermal Energy Storage and Demand Response

Wang

et al. 2019

Energies

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In order to reduce the pollution caused by coal-fired generating units during the heating season, and promote the wind power accommodation, an electrical and thermal system dispatch model based on combined heat and power (CHP) with thermal energy storage (TES) and demand response (DR) is proposed. In this model, the emission cost of CO2, SO2, NOx, and the operation cost of desulfurization and denitrification units is considered as environmental cost, which will increase the proportion of the fuel cost in an economic dispatch model. Meanwhile, the fuel cost of generating units, the operation cost and investment cost of thermal energy storage and electrical energy storage, the incentive cost of DR, and the cost of wind curtailment are comprehensively considered in this dispatch model. Then, on the promise of satisfying the load demand, taking the minimum total cost as an objective function, the power of each unit is optimized by a genetic algorithm. Compared with the traditional dispatch model, in which the environmental cost is not considered, the numerical results show that the daily average emissions CO2, SO2, NOx, are decreased by 14,354.35 kg, 55.5 kg, and 47.15 kg, respectively, and the wind power accommodation is increased by an average of 6.56% in a week.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Dispatch Model Considering Environmental Cost Based on Combined Heat and Power with Thermal Energy Storage and Demand Response

Wang

et al. 2019

Energies

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“…Step 2: A criterion, denoted as deta WF , is derived by Equation (26) to judge whether the generated wind power is surplus or not.…”

Section: Self-repair Methodsmentioning

confidence: 99%

“…As popular as the HS is employed in the CHPS, 23 the EB and the HP are usually utilized to consume surplus wind power by converting it into thermal power. 24,25 The authors in reference 26 explore the effectiveness of the EB incorporated with heat storages on the improvement of wind power integration and propose a start-stop strategy for the control of the EB and heat storages. The performance of the EB and the HP in the CHPS of West Denmark is compared in reference.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, many scholars devote to the application of auxiliary heating devices in the CHPS. 24,25 The authors in reference 26 explore the effectiveness of the EB incorporated with heat storages on the improvement of wind power integration and propose a start-stop strategy for the control of the EB and heat storages. 20 Since part of the heat load can be served by the thermal power from the HS, the CHP units are allowed to reduce power production when the wind energy is abundant.…”

mentioning

confidence: 99%

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Optimal operation of the combined heat and power system equipped with power‐to‐heat devices for the improvement of wind energy utilization

Chen

Lei

et al. 2019

Energy Science & Engineering

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The combined heat and power system (CHPS) is one important type of the integrated energy system in Northern China. Compared with the independently operated power system, the combined heat and power system (CHPS) has a great potential to improve the utilization of wind energy in virtue of the energy storage of the heating system and power‐to‐heat (P2H) devices. This paper studies the optimal operation of the CHPS equipped with the electric boiler (EB) and heat pump (HP). Comprehensive factors are considered, including P2H conversion, the thermal inertia of district heating network (DHN) and buildings, and adjustable heat loads. An equivalent model of the heating system is developed to express the direct mathematical relations between the heat source and heat loads. Redundant details of the DHN are simplified to reduce the complexity of the optimization problem. Furthermore, a self‐repair method incorporated with the real‐coded genetic algorithm (RCGA) is proposed to efficiently handle the nonlinear constraints. The effectiveness of the solving method is verified in case studies. The impacts of the EB and the HP on the CHPS are compared in details. The results show that the HP offers better performance than the EB on coal saving and improving wind power integration.

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Low carbon multi‐objective scheduling of integrated energy system based on ladder light robust optimization

Zhang

Zhao

2020

Int Trans Electr Energ Syst

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Under the low carbon background, a multi‐objective scheduling model of electrical‐thermal integrated energy system which aims at minimizing the integrated operating costs and minimizing the carbon trading costs is established. The uncertainty of wind power brings new challenge to integrated energy systems. In recent years, light robust optimization has been effectively applied to solve the uncertainty of wind power. However, traditional light robust optimization has the shortcomings of over‐conservative decision or excessive violation of constraints. Therefore, light robustness coefficient is introduced to adjust the deterioration tolerance of the objective function. To constrain the relaxation, the relaxation threshold and the ladder penalty coefficient are defined to generate the ladder penalty cost. Then, the ladder light robust optimization is used to deal with the uncertainty of the source‐load sides and a multi‐objective scheduling model based on the ladder light robust optimization is proposed. Finally, the Multi‐objective Optimization Bacterial Colony Chemotaxis (MOBCC) algorithm is used to solve the model. Simulations results show that the proposed model can reduce the total costs by 5.56% and the wind power curtailment rate to 0.45%. Furthermore, different schemes are compared to verify that the ladder light robust optimization can provide a trade‐off between economy and conservation of the system.

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Research on heat and electricity coordinated dispatch model for better integration of wind power based on electric boiler with thermal storage

Cited by 33 publications

References 29 publications

Optimal Dispatch Model Considering Environmental Cost Based on Combined Heat and Power with Thermal Energy Storage and Demand Response

Optimal Dispatch Model Considering Environmental Cost Based on Combined Heat and Power with Thermal Energy Storage and Demand Response

Optimal operation of the combined heat and power system equipped with power‐to‐heat devices for the improvement of wind energy utilization

Low carbon multi‐objective scheduling of integrated energy system based on ladder light robust optimization

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